" So let those fight in the way of Allah who sell the life...
" So let those fight in the way of Allah who sell the life of this world for the Hereafter , and whoever fights in the way of Allah, then be he slain or be he victorious, We shall grant him a great reward." Believers must be prepared for Holy Struggle. In this verse, as well as in a few following verses, the true Muslim believers have logically and excitingly been invited to struggle in the way of Allah.
At first, it implies that only those fight in the way of Allah who are ready to sell the life of this material world for the eternal life in the Hereafter. That is, only those persons can be counted among the true strivers that are ready for such a bargain. It says: "So let those fight in the way of Allah who sell the life of this world for the Hereafter ..." Then, at the end of the verse, it remarks that the fate of such strivers is quite clear.
They either become martyr, or they defeat the enemy for the sake of Allah and gain the victory. In both cases, they will be given a great reward by Allah. The verse says: "... and whoever fights in the way of Allah, then be he slain or be he victorious, We shall grant him a great reward." It is certain that such soldiers, with such a spiritual state, have no failure in their minds, because in both cases they know themselves victorious.
Even the non-Muslim scholars, who have discussed about the quick triumphs of Muslims at the time of the Prophet (S), and their victories after that, have considered this doctrine as one of the effective factors in the progression of Muslims.
Take us out of this town whose people are oppressors, and appoint for us from You guardian, and appoint for us from you helper!" Seeking Assistance through Human Affections In the previous verse the believers have been invited to Holy Struggle. The verse has emphasized on the faith in Allah; and the Day of Resurrection, with the reasoning of gain and loss But this verse invites them towards Holy Struggle basing on stimulating the humanities.